Cited by 78Chromosomal and Genetic VariationsHIV/AIDS drug development and treatmentHIV Research and Treatment

Inhibition of human endogenous retrovirus-K by antiretroviral drugs

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Tyagi, Richa, Li, Wenxue, Parades, Danelvis, Bianchet, Mario A., Nath, Avindra·2017·Retrovirology

Abstract

BACKGROUND: Human endogenous retroviruses (HERVs) are genomic sequences of retroviral origin which were believed to be integrated into germline chromosomes millions of years ago and account for nearly 8% of the human genome. Although mostly defective and inactive, some of the HERVs may be activated under certain physiological and pathological conditions. While no drugs are designed specifically targeting HERVs, there are a panel of antiretroviral drugs designed against the human immunodeficiency virus and approved by the Federal Drug Administration (FDA). RESULTS: We determined if these antiretroviral drugs may also be effective in inhibiting HERVs. We constructed a plasmid with consensus HERV-K sequence for testing the effect of antiretroviral drugs on HERV-K. We first determined the effects of nucleoside and non-nucleotide reverse transcriptase (RT) inhibitors on HERV-K by product enhanced reverse transcription assay. We found that all RT inhibitors could significantly inhibit HERV-K RT activity. To determine the effects of antiretroviral drugs on HERV-K infection and viral production, we pseudotyped HERV-K with VSV-G and used the pseudotyped HERV-K virus to infect HeLa cells. HERV-K production was measured by quantitative real time polymerase chain reaction. We found that RT inhibitors Abacavir and Zidovudine, and integrase inhibitor Raltegravir could effectively block HERV-K infection and production. However, protease inhibitors were not as effective as RT and integrase inhibitors. CONCLUSIONS: In summary, we identified several FDA approved antiretroviral drugs that can effectively inhibit HERV-K. These antiretrovirals may open new prospects for studying HERV-K pathophysiology and potentially for exploring treatment of diseases in which HERV-K has been implicated.

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Crossref · 10.1186/s12977-017-0347-4

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  • Anti-retroviral reverse transcriptase inhibitors inhibit HERV-K activation in cultured cells.

    “Anti-retroviral reverse transcriptase inhibitors inhibit HERV-K activation in cultured cells43”

    From Pathogenic tau-induced piRNA depletion promotes neuronal death through transposable element dysregulation in neurodegenerative tauopathies (2018) · cites this paper as [43]

    The Results section, “Inhibition of HERV-K by HIV-1 RT inhibitors” (page not available), reports that abacavir and zidovudine reduced HERV-K production in cultured HeLa cells after infection with pseudotyped HERV-K. This supports inhibition in cultured cells, but the experiment tested infection and viral production, not activation of endogenous HERV-K. (LLM, conf=0.82)

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Authors
Tyagi, R., Li, W., Parades, D., Bianchet, M. A., & Nath, A.
Affiliations
  • National Institutes of Health (US)
  • Johns Hopkins University (US)
Corresponding author
Nath, Avindra
Venue
Retrovirology
Published
2017-03-22
Volume
14
Issue
1
Pages
21-21
ISSN
1742-4690 (ISSN-L)
OpenAlex
W2602350359
Cited by
78
References
24
Citations by year
2026: 6 · 2025: 8 · 2024: 8 · 2023: 11 · 2022: 14 · 2021: 10 · 2020: 4 · 2019: 4 · 2018: 10 · 2017: 3
FWCI
5.65
Type
journal article
Language
en
Open access
Locations
  • Retrovirology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Institute of Neurological Disorders and Stroke
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
  • Health Sciences › Medicine › Infectious Diseases › HIV/AIDS drug development and treatment
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
Keywords
HERV-K, antiretroviral drugs, reverse transcriptase inhibitors, integrase inhibitors, protease inhibitors, abacavir, zidovudine, raltegravir, retroviral gene expression
MeSH terms
HeLa Cells, Humans, Microbial Sensitivity Tests, Recombination, Genetic, Vesiculovirus, Endogenous Retroviruses, Anti-Retroviral Agents, Real-Time Polymerase Chain Reaction

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